Smooth dynamical crossing of the phantom divide line of a scalar field in simple cosmological models

被引：81
|
作者：
Andrianov, AA
Cannata, F
Kamenshchik, AY
机构：
[1] Dipartimento Fis, I-40126 Bologna, Italy
[2] Ist Nazl Fis Nucl, I-40126 Bologna, Italy
[3] St Petersburg State Univ, VA Fock Dept Theoret Phys, St Petersburg 198904, Russia
[4] Russian Acad Sci, LD Landau Theoret Phys Inst, Moscow 119334, Russia
来源：
PHYSICAL REVIEW D | 2005年 / 72卷 / 04期
关键词：
D O I：
10.1103/PhysRevD.72.043531
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Simple scalar field cosmological models are considered describing gravity assisted crossing of the phantom divide line. This crossing or (de)-phantomization characterized by the change of the sign of the kinetic term of the scalar field is smooth and driven dynamically by the Einstein equations. Different cosmological scenarios, including the phantom phase of matter are sketched.
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页码：1 / 8
页数：8
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